Staple-lock coupling

Abstract

A connection includes a male piece configured to permit insertion into a female piece. The male piece includes an open surface extending through the male piece to permit a fluid to be communicated through the male piece and an external recessed surface portion. When the male piece is inserted into the female piece, the external recessed surface portion is aligned with an open surface extending through the female piece to form an opening extending through the connection. The opening is configured to allow a leg of a staple to be inserted through the opening to couple the male piece and the female piece together. The external recessed surface portion forms a cavity under a portion of the leg of the staple to prevent an edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple extends through the opening.

What is claimed is: 
     
         1 . A connection, comprising:
 a male piece of a detachable hose coupling configured to permit insertion into a female piece of the detachable hose coupling,
 wherein the male piece includes:
 a longitudinal axial open area extending through the male piece to permit a fluid to be communicated through the male piece, and 
 an external recessed surface portion, 
 
 wherein, when the male piece is inserted into the female piece, the external recessed surface portion is aligned with an open surface extending through the female piece to form an opening extending through the detachable hose coupling,
 wherein the opening is configured to allow a leg of a staple to be inserted through the opening to couple the male piece and the female piece together, and 
 
 wherein the external recessed surface portion forms a cavity under a portion of the leg of the staple to prevent an edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple extends through the opening to couple the male piece and the female piece together. 
   
     
     
         2 . The connection of  claim 1 , wherein the external recessed surface portion forms another cavity under another portion of the leg of the staple to prevent another edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple extends through the opening to couple the male piece and the female piece together. 
     
     
         3 . The connection of  claim 1 , wherein the external recessed surface portion is configured to allow only a center portion of the leg of the staple to contact the external recessed surface portion when the leg of the staple extends through the opening to couple the male piece and the female piece together. 
     
     
         4 . The connection of  claim 1 , wherein a profile of the external recessed surface portion comprises a W-shaped profile. 
     
     
         5 . The connection of  claim 1 , wherein the cavity formed under the portion of the leg of the staple extends along one-third of a width of the leg of the staple. 
     
     
         6 . The connection of  claim 1 , wherein a portion of the leg of the staple contacting the external recessed surface portion retains the leg of the staple within the opening when the fluid is communicated through the male piece. 
     
     
         7 . The connection of  claim 1 , wherein the detachable hose coupling comprises a staple-lock hydraulic coupling. 
     
     
         8 . A male piece of a coupling device, comprising:
 a cylindrical body having an interior surface and an exterior surface,
 wherein the interior surface forms a longitudinal axial open area extending from a first end of the cylindrical body to a second end of the cylindrical body to permit a fluid to be communicated through the male piece, 
 wherein the exterior surface includes an external recessed surface portion, and
 wherein the external recessed surface portion is shaped to prevent an edge of a leg of a staple from contacting the external recessed surface portion when the male piece is coupled to a female piece of the coupling device. 
 
   
     
     
         9 . The male piece of  claim 8 , wherein the external recessed surface portion forms a first cavity to prevent the edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple is inserted into the external recessed surface portion. 
     
     
         10 . The male piece of  claim 9 , wherein the external recessed surface portion forms a second cavity to prevent another edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple is inserted into the external recessed surface portion. 
     
     
         11 . The male piece of  claim 9 , wherein the first cavity extends along one-third of a width of the leg of the staple. 
     
     
         12 . The male piece of  claim 8 , wherein the external recessed surface portion is configured to allow only a center portion of the leg of the staple to contact the external recessed surface portion when the leg of the staple is inserted into the external recessed surface portion. 
     
     
         13 . The male piece of  claim 8 , wherein a portion of the leg of the staple contacting the external recessed surface portion is sufficient to retain the leg of the staple within the external recessed surface portion when the fluid is communicated through the male piece. 
     
     
         14 . The male piece of  claim 8 , wherein the male piece is part of a staple-lock hydraulic coupling. 
     
     
         15 . A detachable hose coupling, comprising:
 a male piece configured to permit insertion into a female piece of the detachable hose coupling,
 wherein the male piece includes:
 a longitudinal axial open surface extending through the male piece to permit a fluid to be communicated through the male piece, and 
 an external recessed surface portion, 
 
 wherein, when the male piece is inserted into the female piece, the external recessed surface portion is aligned with an open surface extending through the female piece to form an opening extending through the detachable hose coupling,
 wherein the opening is configured to allow a leg of a staple to be inserted through the opening to couple the male piece and the female piece together, and 
 
 wherein the external recessed surface portion forms a recessed area under a portion of the leg of the staple to prevent a first edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple extends through the opening to couple the male piece and the female piece together. 
   
     
     
         16 . The detachable hose coupling of  claim 15 , wherein the external recessed surface portion forms another recessed area under another portion of the leg of the staple to prevent another edge of the leg of the staple from contacting the external recessed surface portion when the leg of the staple extends through the opening. 
     
     
         17 . The detachable hose coupling of  claim 15 , wherein a center portion of the external recessed surface portion is configured to allow only a center portion of the leg of the staple to contact the external recessed surface portion when the leg of the staple extends through the opening. 
     
     
         18 . The detachable hose coupling of  claim 15 , wherein a profile of the external recessed surface portion comprises a W-shaped profile. 
     
     
         19 . The detachable hose coupling of  claim 15 , wherein the recessed area formed under the portion of the leg of the staple extends along one-third of a width of the external recessed surface portion. 
     
     
         20 . The detachable hose coupling of  claim 15 , wherein a center portion of the leg of the staple contacting the external recessed surface portion is configured to retain the leg of the staple within the opening when the fluid is communicated through the male piece.